This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01BEF599.0C352144 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errol I was not present on the dive. I have merely passed on the email = message that I received from one of the students on the course. I cannot vouch = for the veracity of the account given but pass the information on in the = form I received it. I think that at the least this information could be vital = to other users of the Inspiration rebreather - ie do not recalibrate at = depth if asked (question as to why the hell the machine would ask you to do = this at depth) and make darn sure that your bail out bottle will allow you = to do exactly that - bail out. Regards Steve Bliim > -----Original Message----- > From: Errol Kalayci [SMTP:errol@ga*.ne*] > Sent: Wednesday, 1 September 1999 21:30 > To: Steven Bliim; techdiver@aquanaut.com > Subject: Re: Rebreather problems? >=20 > Steve, > So let me get this straight:=A0 1) Barry was teaching a trimix course = while > using a CCR. 2) Barry's other instructor did a normal dive and deco, = this > implies either solo diver or abandonding Barry when he had a = problem.=A0 > Does anyone still have a question why an instructor should not be ona > rebreather while teaching any course? > All things considered Steve, you were very lucky to live through such = a > major violation of Rules #1 & 2. > Errol=A0 >=20 > -----Original Message----- > From: Steven Bliim < Steven.Bliim@Mc*.co*.au* > <mailto:Steven.Bliim@Mc*.co*.au*>> > To: techdiver@aquanaut.com <mailto:techdiver@aquanaut.com> < > techdiver@aquanaut.com <mailto:techdiver@aquanaut.com>> > Date: Tuesday, August 31, 1999 11:40 PM > Subject: Rebreather problems? > =09 > =09 >=20 > The following is reported to have occurred in Sydney, Australia in > early August. One might say that Barry should buy a lottery ticket = after > this one. >=20 >=20 > What a weekend!=A0 In Sydney to start my trimix course with Barry > Hallett at=20 > > Southern Cross, Saturday was dead flat so bugger the course we did > two 48m=20 > > dives with a fairly hefty surface interval, 20m viz on the > Coollooli=20 > > and the Dee Why. Did some theory and mixing that afternoon, then > Sunday=20 > did=20 > > another 48m dive on the wreck next to the Dee Why (Meggol), on=A0 > 21.5/22=20 > > Trimix, I had a lovely dive.=A0 Barry on his Buddy Inspiration = fully > closed=20 > > circuit rebreather however had a less than happy day (See below > for the=20 > > full details). At almost 50m, Barry's 'breather gave him pure O2, > yup, 6.0=20 > > atm, needless to say he suffered major nausea, visual > disturbances, and=20 > > what he describes as like being hit with 240v, twice.=A0 He = suffered > two big=20 > > hits but was able to make it to the surface on open circuit, > negating=20 > > almost 30min of deco, no signs or symptons experienced - he's a > very lucky=20 > > man. Not to be outdone, his other instructor, Kosta, also on a > Buddy=20 > > Inspiration surfaced after a normal dive and deco, and took a mild >=20 > shoulder=20 > > hit of DCS, so he went down for another 20min of deco, surfaced > with no=20 > > other problems.=A0 This is also after their new girl in the shop > took a foot=20 > > hit on Wed after a 48m dive, normal profile with the only > contributing=20 > > factor being she had cold feet - she's now going to buy a drysuit! >=20 > >=20 > > My dive went uneventfully, trimix is a lovely gas for clearing the > head=20 > and=20 > > focussing clearly, and completing tasks much more quickly. Looking > forward=20 > > to using it on the 70m dives next month, then......!=20 > >=20 > > Barry's big day out: (don't read on if details bore you!)=20 > >=20 > > Barry's Inspiration uses three separate electronically controlled > O2=20 > > sensors and a polling method.=A0 Near the start of the dive and on > the=20 > bottom=20 > > at nearly 50m, one sensor went u/s, and the computer asked him if > he=20 > wanted=20 > > to recalibrate all three, and in his self admitted complacency, he >=20 > answered=20 > > yes. He later realised the computer was asking him a question akin > to "Do=20 > > you want to suffer an enormous CNS O2 seizure and die, or not?"=A0 > As the O2=20 > > set point for the dive was 1.4, and as he had just told the > sensors that=20 > he=20 > > was now only at 1 atm, and therefore PO2 of 0.21, the 'breather > then=20 > > commenced adding pure o2 into the loop, with the expected results > of two=20 > > major seizures.=A0 He should not be alive to tell this story, as = on > the=20 > > ascent, having bailed to open circuit, his bailout gas supply > exhausted=20 > (he=20 > > suspects it wasn't full to start with - error #2), luckily he had > made it=20 > > to the ascent line and was able to receive gas from another diver, > but he=20 > > continued to the surface fearing another major hit, which actually >=20 > > occurred.=A0 He was also not cognitive of one divers efforts to = give > him=20 > air,=20 > > despite being right in his face. Barry will freely admit he f___d > up, due=20 > > to complacency.=A0 He still has faith in the rebreather, and is = not > shy to=20 > > tell people what he did wrong in orer to let other people learn > from his=20 > > mistakes. Here endeth the lesson.=20 > >=20 > >=20 >=20 > Regards=20 > Steven Bliim=20 >=20 ------_=_NextPart_001_01BEF599.0C352144 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Diso-8859-1"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version = 5.5.2232.0"> <TITLE>RE: Rebreather problems?</TITLE> </HEAD> <BODY> <P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Errol</FONT> </P> <P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">I was not present on = the dive. I have merely passed on the email message that I received = from one of the students on the course. I cannot vouch for the veracity = of the account given but pass the information on in the form I received = it. I think that at the least this information could be vital to other = users of the Inspiration rebreather - ie do not recalibrate at depth if = asked (question as to why the hell the machine would ask you to do this = at depth) and make darn sure that your bail out bottle will allow you = to do exactly that - bail out.</FONT></P> <BR> <P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Regards</FONT> <BR><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Steve Bliim</FONT> </P> <UL> <P><FONT SIZE=3D1 FACE=3D"Arial">-----Original Message-----</FONT> <BR><B><FONT SIZE=3D1 FACE=3D"Arial">From: </FONT></B> <FONT = SIZE=3D1 FACE=3D"Arial">Errol Kalayci [SMTP:errol@ga*.ne*]</FONT> <BR><B><FONT SIZE=3D1 FACE=3D"Arial">Sent: </FONT></B> <FONT = SIZE=3D1 FACE=3D"Arial">Wednesday, 1 September 1999 21:30</FONT> <BR><B><FONT SIZE=3D1 = FACE=3D"Arial">To: </FONT></B> <FONT SIZE=3D1 = FACE=3D"Arial">Steven Bliim; techdiver@aquanaut.com</FONT> <BR><B><FONT SIZE=3D1 = FACE=3D"Arial">Subject: </FONT>= </B> <FONT SIZE=3D1 FACE=3D"Arial">Re: Rebreather problems?</FONT> </P> <P><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">Steve,</FONT> <BR><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">So let me get this = straight:=A0 1) Barry was teaching a trimix course while using a CCR. = 2) Barry's other instructor did a normal dive and deco, this implies = either solo diver or abandonding Barry when he had a problem.=A0 Does = anyone still have a question why an instructor should not be ona = rebreather while teaching any course?</FONT></P> <P><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">All things = considered Steve, you were very lucky to live through such a major = violation of Rules #1 & 2.</FONT> <BR><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">Errol</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial">=A0</FONT> </P> <UL> <P><B><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">-----Original = Message-----</FONT></B><BR> <B><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">From:</FONT></B> = <FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">Steven Bliim = <</FONT><U> <FONT COLOR=3D"#0000FF" SIZE=3D2 = FACE=3D"Arial">Steven.Bliim@Mc*.co*.au* <<A = HREF=3D"mailto:Steven.Bliim@Mc*.co*.au*">mailto:Steven.Bliim@McCABES.= com.au</A>></FONT></U><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">><BR> </FONT><B><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">To:</FONT></B><B><U></U></B><U> <FONT COLOR=3D"#0000FF" = SIZE=3D2 FACE=3D"Arial">techdiver@aquanaut.com <<A = HREF=3D"mailto:techdiver@aquanaut.com">mailto:techdiver@aquanaut.com</A>= ></FONT></U><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial"> = <</FONT><U> <FONT COLOR=3D"#0000FF" SIZE=3D2 = FACE=3D"Arial">techdiver@aquanaut.com <<A = HREF=3D"mailto:techdiver@aquanaut.com">mailto:techdiver@aquanaut.com</A>= ></FONT></U><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">><BR> </FONT><B><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">Date:</FONT></B> <FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">Tuesday, August 31, 1999 11:40 PM<BR> </FONT><B><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">Subject:</FONT></B> <FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">Rebreather problems?<BR> <BR> </FONT> </P> <P><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">The following is = reported to have occurred in Sydney, Australia in early August. One = might say that Barry should buy a lottery ticket after this one.</FONT><= /P> <BR> <P><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">What a weekend!=A0 = In Sydney to start my trimix course with Barry Hallett at</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> Southern = Cross, Saturday was dead flat so bugger the course we did two = 48m</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> dives with = a fairly hefty surface interval, 20m viz on the Coollooli</FONT><BR> <FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> and the Dee Why. = Did some theory and mixing that afternoon, then Sunday</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">did</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> another 48m = dive on the wreck next to the Dee Why (Meggol), on=A0 = 21.5/22</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> Trimix, I = had a lovely dive.=A0 Barry on his Buddy Inspiration fully = closed</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> circuit = rebreather however had a less than happy day (See below for = the</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> full = details). At almost 50m, Barry's 'breather gave him pure O2, yup, = 6.0</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> atm, = needless to say he suffered major nausea, visual disturbances, = and</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> what he = describes as like being hit with 240v, twice.=A0 He suffered two = big</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> hits but = was able to make it to the surface on open circuit, = negating</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> almost = 30min of deco, no signs or symptons experienced - he's a very = lucky</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> man. Not to = be outdone, his other instructor, Kosta, also on a Buddy</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> Inspiration = surfaced after a normal dive and deco, and took a mild</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">shoulder</FONT><FONT COLOR=3D"#000000" = FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> hit of DCS, = so he went down for another 20min of deco, surfaced with no</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> other = problems.=A0 This is also after their new girl in the shop took a = foot</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> hit on Wed = after a 48m dive, normal profile with the only contributing</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> factor = being she had cold feet - she's now going to buy a drysuit!</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">></FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> My dive = went uneventfully, trimix is a lovely gas for clearing the = head</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">and</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> focussing = clearly, and completing tasks much more quickly. Looking = forward</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> to using it = on the 70m dives next month, then......!</FONT><FONT COLOR=3D"#000000" = FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">></FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> Barry's big = day out: (don't read on if details bore you!)</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">></FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> Barry's = Inspiration uses three separate electronically controlled = O2</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> sensors and = a polling method.=A0 Near the start of the dive and on the</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">bottom</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> at nearly = 50m, one sensor went u/s, and the computer asked him if he</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">wanted</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> to = recalibrate all three, and in his self admitted complacency, = he</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 = FACE=3D"Arial">answered</FONT><FONT COLOR=3D"#000000" = FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> yes. He = later realised the computer was asking him a question akin to = "Do</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> you want to = suffer an enormous CNS O2 seizure and die, or not?"=A0 As the = O2</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> set point = for the dive was 1.4, and as he had just told the sensors = that</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">he</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> was now = only at 1 atm, and therefore PO2 of 0.21, the 'breather = then</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> commenced = adding pure o2 into the loop, with the expected results of = two</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> major = seizures.=A0 He should not be alive to tell this story, as on = the</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> ascent, = having bailed to open circuit, his bailout gas supply = exhausted</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">(he</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> suspects it = wasn't full to start with - error #2), luckily he had made = it</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> to the = ascent line and was able to receive gas from another diver, but = he</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> continued = to the surface fearing another major hit, which actually</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> = occurred.=A0 He was also not cognitive of one divers efforts to give = him</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">air,</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> despite = being right in his face. Barry will freely admit he f___d up, = due</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> to = complacency.=A0 He still has faith in the rebreather, and is not shy = to</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> tell people = what he did wrong in orer to let other people learn from = his</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">> mistakes. = Here endeth the lesson.</FONT><FONT COLOR=3D"#000000" = FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">></FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">></FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"> </FONT> </P> <P><FONT COLOR=3D"#000000" SIZE=3D2 FACE=3D"Arial">Regards</FONT><FONT = COLOR=3D"#000000" FACE=3D"Arial"><BR> </FONT><FONT COLOR=3D"#000000" SIZE=3D5 FACE=3D"Brush Script MT">Steven = Bliim</FONT><FONT COLOR=3D"#000000" FACE=3D"Arial"> </FONT> </P> </UL></UL> </BODY> </HTML> ------_=_NextPart_001_01BEF599.0C352144-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]